Write cleanup code

PowerBuilder Native Interface

Write cleanup code

When you have finished with the PBCallInfo structure, call FreeCallInfo to release the memory allocated to it, then delete the structure, release the session, and free the library:

   // Release Call Info
   session->FreeCallInfo(&ci);
   delete &ci;

   // Release session
   session->Release();
   return 0;
   FreeLibrary(hinst);
}